2180016 has 30 divisors (see below), whose sum is σ = 6101420. Its totient is φ = 726624.

The previous prime is 2179997. The next prime is 2180021. The reversal of 2180016 is 6100812.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7426 + ... + 7713.

2^2180016 is an apocalyptic number.

It is an amenable number.

2180016 is an abundant number, since it is smaller than the sum of its proper divisors (3921404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2180016 is a wasteful number, since it uses less digits than its factorization.

2180016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15153 (or 15144 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 2180016 is about 1476.4877242971. The cubic root of 2180016 is about 129.6641429170.

Adding to 2180016 its reverse (6100812), we get a palindrome (8280828).

The spelling of 2180016 in words is "two million, one hundred eighty thousand, sixteen".